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In which of the following situations is the use of combinations most appropriate?

Answer and explanation

Correct answer: Choosing a committee of 3 students from 8 students

In choosing a committee, the order of selected members does not matter, so the same group of 3 is counted once; hence combinations apply. In awarding ranks, changing the order changes the result, so permutations are used. Exam tip: use combinations when order is irrelevant.

Related tags

CombinationsPermutationsOrder MattersCommittee SelectionClass 11 MathematicsPermutations And CombinationsMathematicsClass 11 Mcq

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